Radiator Sealer

Permanently seals leaks

Take note!

Suitable for all types of radiator, all types of antifreeze and safe for rubber hoses, metal parts and gaskets.

  • Feature Lubricates Lubricates
  • Feature Prevents rust and deposits Prevents rust and deposits
  • Feature Protects Protects

Product Description

STP® Radiator Sealer is designed to repair radiator leaks quickly and effectively, forming a permanent seal. It contains corrosion inhibitors to help prevent the formation of rust and deposits. This car radiator leak sealer also lubricates the water pump.

How it helps:

  • Repairs leaks quickly
  • Provide permanent seal for radiators
  • Lubricates water pump

Usage Directions

  1. Run the engine until the coolant is warm (not hot).
  2. Shake bottle well & pour entire bottle of STP® Radiator Sealer into radiator.
  3. Run the engine for approximately 10 minutes or drive a short distance, allowing seal to harden. Be careful when opening the radiator/cooling system: hot coolant or steam might escape. One bottle treats cooling systems up to 14 litres capacity.

Usage Frequency: Use as required.

Frequently Asked Questions

  • STP® Radiator Sealer is suitable for all types of radiator, all types of antifreeze and safe for rubber hoses, metal parts and gaskets.

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